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Table 1 Constructs identified from relevant behaviour change theories with the corresponding a priori themes

From: Conceptual model for dietary behaviour change at household level: a ‘best-fit’ qualitative study using primary data

Theory and construct

Identified a prioritheme

Theory I: Trans-theoretical or Stages-of-change model for behaviour change

  • Stage construct

1. Identifying stages-of-change

This was considered as one theme with the focus on identifying cues to differentiate households to three stages-of-change, instead of the original five. Hence for this study:

  • Pre-contemplation = Pre-contemplation

  • Intention = Contemplation + Preparation

  • Action = Action + Maintenance

  • Decisional balance

2. Perceived pros and cons

  • Self-efficacy

3. Self-efficacy

  • Change processes

4. Awareness

5. Emotional reaction

6. Effect of behavior on others

7. Social alternatives for disadvantaged

8. Self-evaluation

9. Identifying temptations

10. Helpful relationship

11. Substitution

12. Reinforcement or rewards

13. Commitment

Theory II: Health Belief Model

  • Perceived susceptibility

14. Perceived susceptibility

  • Perceived benefits

15. Perceived benefits

  • Perceived barriers

16. Perceived barriers

  • Perceived seriousness

17. Perceived seriousness

  • Cues to action

18. Perceived facilitators

  • Modifying variables

19. Personal modifiers

  • Self efficacy

3. Self-efficacy*

Theory III: Theory of Planned Behaviour

  • Attitude (towards the behaviour)

20. Attitude

  • Subjective norms

21. Subjective norms

  • Perceived behavioural control

3. Self-efficacy*

Theory IV: Social Cognitive Model

  • Knowledge

4. Awareness*

  • Perceived self-efficacy

3. Self-efficacy*

  • Outcome expectations

15. Perceived benefits*

  • Goals

22. Goal setting

  • Perceived facilitators and impediments

18. Perceived facilitators*

16. Perceived barriers*

  1. *Constructs from different health behaviour theories having similar definitions are identified as one a priori theme.